The following pages with further information about geology in Essex are available:
Geology in Essex Walls
Materials used in thousands of walls around Essex, especially church walls, may often reflect the underlying geology. Blocks and cobbles of building material were dug from local pits, cleared from the land or transported up rivers from seashores. The Essex Rock & Mineral Society are undertaking a project that should enable us to test whether there is a pattern of building that reflects Essex geology. For more information & guidance on how to join in our survey please visit the ERMS website Walls Survey section.